Find the test statistic, t, to test the hypothesis that μ
1 = μ
2. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below.
n
1 = 14
n
2 = 12
1 = 15
2 = 16
s
1 = 2.5
s
2 = 2.8
◦ -1.558
◦ -0.909
◦ -0.954
◦ -0.915